Katakana ↔ Hiragana Converter
Convert Japanese kana between katakana (カタカナ) and hiragana (ひらがな)
How it works
Japanese uses two kana scripts: hiragana (ひらがな) for native words and grammar, and katakana (カタカナ) for loanwords and emphasis. The two map one-to-one, so converting between them is a direct character shift. Paste any kana text to convert it; you can also switch half-width katakana to full-width. Everything runs locally — your text is never uploaded.
Frequently asked
How do I convert hiragana to katakana?
Select the Hiragana → Katakana mode and paste your hiragana text (e.g. あいうえお). It is converted to katakana (アイウエオ) instantly.
Does it convert katakana back to hiragana?
Yes. Use Katakana → Hiragana to turn カタカナ into かたかな. The mapping is one-to-one for standard kana.
What about half-width (hankaku) katakana?
Use the full-width / half-width modes to convert half-width katakana ｶﾀｶﾅ to full-width カタカナ and back.
Is romaji supported?
This tool converts between the kana scripts and character widths. It does not transliterate to or from romaji (Latin letters).